2003 SSANGYONG MUSSO ECO mode

TRANSFER CASE (TOD) 5D2-9
4H/4L Switch Input4H 4H 4H 4H 4H 4H4H4H4H
4L 4L 4L4L 4L 4L4L4L 4L
Position Sensor Interpretation
1. When the module powers up, it will read the position sensor
and the 4H/4L switch input and respond to the possible codes as follows
2. A command to shift will only be acted upon if the TCCU is reading a valid code at the time the command to shift ismade.
3. After a shift has started, the TCCU will power the shift motor until the code for the requested position is read. If an invalidcode is read, the TCCU will go into a default mode.
4. During a shift attempt, the shift motor will be energized for a maximum of 5 seconds. Motor Position
Left Stop
Left of High
High
Right of High
Zone 1
Neutral
Zone 2 Low
Right Stop
Left Stop
Left of High High
Right of High
Zone 1
Neutral Zone 2 Low
Right Stop Action
No action required. 4L bulb off. No action required. 4L bulb off. No action required. 4L bulb off. Blink 4L bulb. After the shift conditions are met, attempt a shiftto 4H under conditions of below 87 rpm in front and rearpropshaft and “Neutral ” position. After succesfully shifting into
4H, stop blinking 4L bulb. Same as above Same as aboveSame as aboveSame as aboveSame as above Blink 4L bulb. After the shift conditions are met, attempt a shift to 4L. After succesfully shifting into 4L, stop blinking 4L bulb.Same as aboveSame as aboveSame as above Same as above Same as aboveSame as aboveNo action required. 4L bulb on. No action required. 4L bulb on.

5D2-10 TRANSFER CASE (TOD) Electric Shift System Operation
The Electric Shift System is responsible for changing the Transfer Case gear ratio by controlling the electric shift
motor. The TCCU monitors the 4H/4L switch, neutral switch, speed sensors, position encoder, and ignition switch. A range change is initiated when
1. The 4H/4L Switch is changed from 4H to 4L or from 4L to 4H.
2. The motor position (as indicated by the position encoder) does not match the 4H/4L Switch immediately after theignition is turned on.
1. Shift Criteria When a range change is initiated a Diagnostic Test will be completed on the motor, speed sensors, and position
encoder. If the Diagnostic Test fails, the shift will not be attempted. If all components are operating properly, theTCCU will attempt a range change after the following shift criteria are met:
a. The transmission is in neutral for 2 seconds after the shift is requested.
b. Both propshaft speeds are below 87 rpm (2580 pulses/minute).
If the transmission is taken out of neutral before 2 seconds has elapsed, or either propshaft speed increases above the limit, the shift will be suspended and the 4L Indicator will continue to blink until the criteria are met again or the 4H/4L Switch is returned to the original position.
2. Range Change When the shift criteria are met, the motor is rotated in the appropriate direction (as determined by the selectorswitch) until one of the following occurs:
a. The motor reaches its destination.
b. The motor is on for 5 seconds without reaching its destination. The shift has failed and the TCCU will respond as default mode.
c. A fault occurs with either the motor or position encoder. Refer to the diagnosis requirement.
When the motor is energized, the Ignition, 4H/4L Switch, propshaft speeds, and transmission neutral inputs are ignored.
3. Indicator Function Once a range change has been initiated the 4L Indicator will begin to blink at a rate of 0.3 seconds on, 0.3 seconds off until the shift is completed or canceled.
If a successful shift has been completed, the 4L Indicator will be illuminated if the motor is in Low and it will be turned off if the motor is in High. 4L Indicator illuminates as below figure.
 4H
4L
@ : shift is completed
 4L
4H
@ : shift is completed

TRANSFER CASE (TOD) 5D2-11
4. Electric Shift Default ModeIf the motor fails to reach its destination, the TCCU will attempt the following (in order):
a. The TCCU will wait 3 seconds then attempt the shift again.
b. If the second attempt to reach the destination fails the TCCU will wait 3 seconds then attempt to rotate the motor back to the original position. If successful, all future shifts will be inhibited until the Ignition is cycled.
c. If the attempt to return to the original position fails, the TCCU will wait 3 seconds then attempt to rotate the motor to the original position again. If the second attempt to return to the original position is successful, the “4WD CHECK ” lamp will be illuminated, and all future shifts will be inhibited until the Ignition is cycled.
d. If the second attempt to return to the original position fails the motor will be turned off, the “4WD CHECK ” lamp
will be illuminated, and all future shifts will be inhibited until the Ignition is cycled.
TOD TM
System Operation
The TOD TM
System is responsible for distributing torque between the front and rear axles. The TCCU monitors the
propshaft speeds, operating range (High/Low), and ABS activity and then applies a calculated amount of torque tothe front axle by Pulse Width Modulating the current applied to the EMC.
1. Touch-off Torque
The minimum EMC Duty Cycle is based on the vehicle speed and throttle positionThe TCCU receives the TPS signal from the following sources:On vehicles equipped with CAN, the TCCU receives the TPS signal from the CAN bus.
2. When Slip Detection
The TCCU continuously monitors the front and rear propshaft speeds to detect wheel slip.
3. Wheel Slip Control When wheel slip is detected the TCCU controls the EMC duty cycle as necessary until the wheel slip is reduced
below the allowable limit. The EMC Duty Cycle will then be reduced to the Touch-Off value.
4. Brake/ABS Strategy When the ABS System is active, the EMC Duty Cycle is set to a fixed duty cycle (30%) to aid in braking without counteracting the ABS System.
5. 4L Strategy When the system is operating in 4L, the TCCU continues TOD TM
(operation provided that the propshaft speed is
below 175 rpm (5220 pulses/minute)). When the speed increases above 175 rpm, the EMC Duty Cycle is set tothe maximum value (88%) which applies the maximum available torque to the front axle.

SECTION 7D
FULL AUTOMATIC TEMPERATURECONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 7D-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 7D-1
Service Specifications . . . . . . . . . . . . . . . . . . . 7D-3
Schematic and Routing Diagrams . . . . . . . . 7D-4
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . 7D-4
FATC Block Diagram . . . . . . . . . . . . . . . . . . . . 7D-5
Component Locator . . . . . . . . . . . . . . . . . . . 7D-6 TABLE OF CONTENTS
Ventilation System . . . . . . . . . . . . . . . . . . . . . . 7D-6
Function Description . . . . . . . . . . . . . . . . . . . . 7D-7
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 7D-8
Diagnosis Test . . . . . . . . . . . . . . . . . . . . . . . . 7D-8
Maintenance and Repair . . . . . . . . . . . . . . 7D-11 FATC Control Panel . . . . . . . . . . . . . . . . . . . 7D-11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 7D-15
FATC (Full Automatic Temperature Control) is full automatic heater and airconditioning system that detects incar temperature, ambient temperature, sun load and coolant temperature and controls airconditioner system
blowing capacity, outlet temperature and intaking/outlet mode to maintain interior comfort.
SPECIFICATIONSSPECIFICATIONS
Application
Core Size (LxWxT)
Core Type
Expansion Valve Type Thermostat
Resister TypeCooling Capacity Description
237.0x232.0x92.0 Aluminum plate
Angle
ON:4.5±0.6 °C, OFF:1.5±0.6 °C
Aluminum plate
4,500 Kcal/h(AT 420 CMH)
Evaporator Unit
Application
Capacity
Type Description
650-750 g R134a
Refrigerant

FATC-HAVC 7D-7
FUNCTION DESCRIPTION 1. AUTO switch
By pressing the AUTO switch, set temperature, AUTO, fan speed, air source, air flow mode will be
appeared on the VFD display.
Following items will be controlled automaticallyaccording to set temperature. - Mode and intake door
- Temperature door- Blower fan speed- Compressor ON/OFF control
When AUTO switch is released, other functions will be controlled automatically except for manually selected switches.
2. MODE switch
By pressing the MODE switch while the AUTO switch is turned ON, AUTO indicator light will go off and air flow mode will be controlled manually in the order of VENT B/L FLR MIX VENT.
3. OFF switch
Press this switch and the airconditioner system will
be turned OFF.
4. Temperature UP/DOWN switch
This switch is a switch increasing or decreasing set temperature and position of the temperature doorwill be automatically controlled according to set temperature and outlet temperature will be controlled
by adjusting blending ratio of cold and hot air.
By operating the switch, set temperature will beincreased/decreased by 0.5 °C.
Set temperature range is 17 - 32 °C.
Max. cold function will be performed at set temperatureof 17 °C and max. hot function will be performed at
set temperature of 32 °C.
When pressed more than 1 second, it will beautomatically UP/DOWN by interval of 0.28 sec. after1 second.
When it changed 17.5 °C17 °C, 31.5 °C32 °C and
DOWN switch is pressed after 17 °C or UP switch is
pressed after 32 °C, there will be operating sounds 3
times during 0.1 sec. 5. DEFROST switch

By pressing this switch, DEF will turn on and mode
door will be fixed at DEF.
Recirculation/fresh air switch will be fixed as FRESH.
When airconditioner is turned ON and ambienttemperature is less than 1.5 °C, the airconditioner
will be turned off.
Selection of airconditioner OFF is possible by manual.
6. A/C switch
The airconditioner system will be turned ON or OFF by pressing this switch.
7. Recirculation fresh air switch
Air intake will be automatically switched to recirculationor fresh air (REC FRE) by pressing this switch.
8. Blower switch (UP/DOWN)
Blower speed can be controlled by manual and if fan UP/DOWN switch is pressed when AUTO mode isselected, fan speed will UP/DOWN based on currentfan level.
When 6 segments are turned on, it is max. HI operation.
When pressed more than 1 second, it will beautomatically UP/DOWN by interval of 0.28 sec. after 1 second.
When segment is changed stage 2 stage 1 (LO),
stage 5 stage 6 (HI) and HI switch is pressed in HI
status or DOWN switch is pressed in LO status, therewill be operating sounds 3 times during 0.1 sec.
When switch is operated in OFF status, it will be operated as stage 1 (1 segment display).

SUPPLEMENTAL RESTRAINT SYSTEM(SRS) 8B-7
DIAGNOSIS
DESCRIPTION Air bag control unit continuously controls system function as follows during ignition ON or driving.
- Recognition of collision
- Internal diagnosis
- External diagnosisIf recognize or detect defects, warning lamp will turn on. If there is danger of improper deployment, the system will enter overall shutdown status and the air bag will not inflate. Air bag control unit will store detected internal and external defects in the EEPROM. System Control
Battery Voltage Check
Battery voltage will be monitored continuously. If voltage is out of normal operating range, all system diagnosis will stop and warning lamp turn on. Battery Voltage (V)< 8.7
9 - 16
> 16.3
Function
System diagnosis stops and warning lamp turns on Normal operation range
System diagnosis stops and warning lamp turns on
Squib Diagnosis It checks not only high (4.50.5) or low (1.40.5) resistance but also short resistance (1- 10k) status between the battery and ground to indicate defects in squib line by blinking warning lamp. Air bag control unit (AC4) can measure squib resistance.
Warning Lamp Turning On Air bag control unit detects system defects during ignition ON or driving and displays following 2 warning lamps.
- Warning lamp ON: internal defects of the air bag control unit
- Warning lamp blinking: higher resistance than standard in the squib line or short at the battery or ground, Safety Function Check It checks defects during operation of the arming sensor If the sensor is shorted for more than 2 seconds, the module will enter overall shutdown mode.
Temperature Sensor
Function of the temperature sensor will be monitored continuously. If there is fault due to defective sensor or short, the lamp will turn on and program will take calibration temperature (25) of collision conditions. Power Supply Airbag control unit operates in 9-16v and the characteristic of the system has backup condenser to supply the power for max.150ms if there is power defect during collision.

SUPPLEMENTAL RESTRAINT SYSTEM(SRS) 8B-9
Diagnosis Air bag control unit diagnoses each function in the intervals of 250ms - 20 sec. during start-up or driving to prevent unwanted air bag deployment. If there is defect, it turns on or blinks warning lamp to indicate defects in the air bag
system to the driver. And fatal defect is found, air bag control unit enters overall or partial shutdown status and fault code will be stored. Air bag control unit diagnoses following items.- Ignition TR - Acceleration
- Microprocessor, RAM and ROM
- Watchdog - Shutdown Switch
Diagnosis Condition Diagnosis ItemsStart-up (ignition ON)
During Driving
Lamp Blinking Mode There are 2 kinds of blinking mode
1. When system internal fault is found, the lamp will stay on.
2. The lamp will blink according to external fault and there are 2 blinking codes.
Blinking code 1 (Squib resistance fault in the driver’ s air bag squib line)
Blinking code 2 (Squib short on plus and minus in the air bag squib line)Lamp blinking code is as follows. The last blinking will be within 0.5 sec. and 1 cycle of blinking will be repeated every 5 seconds.
Blinking Code 1
(Sec.) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Blinking Code 3
(Sec.) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 - Squib resistance - Squib line short to battery and ground - Energy reserve system - Lamp output- Battery voltage- ASIC communication- Arming sensor - ASIC overheating - RAM and W/D- EEPROM

5-148 ELECTRICAL WIRING DIAGRAMS
4) WARNING LAMP(PREHEAT'G, DOOR OPEN), INDICATOR LAMP(ECONOMIC, DE-FROSTER, WINTER, T/SIGNAL, FOG, HIGH BEAM) CIRCUIT
Main - Engine Engine - Main Main
C101 (21Pin, Colorless)C104 (15Pin, Black)G201
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION
a. CONNECTOR INFORMATION
CONNECTOR(NUMBER)
CONNECTING. WIRING HARNESSCONNECTOR POSITION
Inside The Engine Room Fuse Block Under The Engine Room Fuse Block Right The I/P Fuse Block
C101
W/H MAINC104
W/H ENGINE
CLUSTER
11 2
29 38
28
13 2021
39 434842
S/E MODE
SWITCH
PREHEATING UNIT TCM
MULTI-FUNCTIONSWITCH
HAZARD SWITCH STICS
12
1 235
46
B1
A1 B6
B7B14
A15 A30
A14
C1
C2
C3 C4
B1 B2 B3 B4
B5 B6 B7 B8 B9B10
A1 A2 A3 A4 A5 A6
A7 A8 A9A10 A11 A12 A13 A14
12
5678910 34
10987654321
20 19 18 17 16 15 14 13 12 11
28 27 26 25 24 23 22 21
36 35 34 33 32 31 30 29
30
BAT +
31 GND
G201
Lg
12 Cluster2
GrR
27
B
Preheat'g Defroster Winter Turn siganl
LHHigh-Beam Door Open
RH Ef12
15A Ef9
60A
F8 10A C103
RB
W
1
C101
9
C104
6
S/E Mode
Switch
(GSL, MB A/T)
"2"
RB
RB
12
Preheat'g
Unit
"2(DSL LA)"
BR
26
Defroster
Relay"87"
"7"
Stics
"87"
Head Lamp
Relay (Hi)
GBr
24 TCM
"A12" Hazard
Switch
"5"
HazardSwitch
"6"
G
28 Tu r m
Signal
Switch
"B2"
Tu r m
Signal
Switch "B1"
Y
25 RW RB RB
C104
7 RY RY
22
21 1
Head Lamp
Relay (Low)
"87" Ef2 80A